Files Missing after Purachase - please help

I´m just getting started with Poser and I bought some basic stuff like victoria, the girl and some additional content like avaris. In some cases, like with avaris, it happens that I can´t load elements such as her skin because there´s files missing in my poser directory. I believe I installed everything correctly, but still the files aren´t there. Anyone experienced the same problem? THanks in advance